From 8502f7a4b19e19b96b06e12a89a908d712a11bdc Mon Sep 17 00:00:00 2001
From: eap <eap@opencascade.com>
Date: Mon, 20 Nov 2017 15:40:06 +0300
Subject: [PATCH] Fix remeshing using NETGEN of complete_sa_example

---
 src/SMESHUtils/SMESH_FillHole.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/SMESHUtils/SMESH_FillHole.cxx b/src/SMESHUtils/SMESH_FillHole.cxx
index 902cd0363..41705a324 100644
--- a/src/SMESHUtils/SMESH_FillHole.cxx
+++ b/src/SMESHUtils/SMESH_FillHole.cxx
@@ -176,7 +176,10 @@ namespace
 
   void BEdge::ComputeAngle( bool theReverseAngle )
   {
-    myAngleWithPrev = acos( myDir.Dot( myPrev->myDir.Reversed() ));
+    double dot = myDir.Dot( myPrev->myDir.Reversed() );
+    if      ( dot >=  1 ) myAngleWithPrev = 0;
+    else if ( dot <= -1 ) myAngleWithPrev = M_PI;
+    else                  myAngleWithPrev = acos( dot );
 
     bool isObtuse;
     gp_XYZ inFaceDirNew = myDir - myPrev->myDir;
-- 
2.39.2